Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Em qual ano o campeonato mundial indoor concedeu uma posição de 3º lugar?
 ###Tabelas: CREATE TABLE list_of_sponsored_cosponsored_legislation (list_of_sponsored_cosponsored_legislation_id AUTO_INCREMENT PRIMARY KEY, Years covered VARCHAR, All bills sponsored INT, All amendments sponsored INT, All bills cosponsored INT, All amendments cosponsored INT, Original bills cosponsored INT, Original amendments cosponsored INT, Bill support withdrawn INT, Amendment support withdrawn INT) CREATE TABLE hurunui_district (hurunui_district_id AUTO_INCREMENT PRIMARY KEY, Name VARCHAR, Years VARCHAR, Gender VARCHAR, Area VARCHAR, Authority VARCHAR, Decile INT, Roll INT) CREATE TABLE achievements (achievements_id AUTO_INCREMENT PRIMARY KEY, Year INT, Competition VARCHAR, Venue VARCHAR, Position VARCHAR, Notes VARCHAR) CREATE TABLE season_2:_1993-1994 (season_2:_1993-1994_id AUTO_INCREMENT PRIMARY KEY, No. in series INT, No. in season INT, Title VARCHAR, Director VARCHAR, Writer(s) VARCHAR, Original air date VARCHAR, Production code VARCHAR) CREATE TABLE internationally_capped_players (internationally_capped_players_id AUTO_INCREMENT PRIMARY KEY, Player VARCHAR, Country VARCHAR, Caps INT, Goals VARCHAR, Years Active VARCHAR, Years at Club VARCHAR)  
SELECT SUM Year FROM achievements WHERE Competition = world indoor championships AND Position = 3rd